ATOS vs. HOOD

Last updated Jun 4, 2026

ATOS (Atossa Therapeutics, Inc.) and HOOD (Robinhood Markets, Inc.) are both stocks. ATOS operates in Biotechnology (Healthcare), while HOOD operates in Capital Markets (Financial Services). Over the past 3 years, ATOS returned -30.69%/yr vs 107.01%/yr for HOOD. At a 0.35 correlation, their price movements are largely independent.

Performance

ATOS vs. HOOD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Atossa Therapeutics, Inc. (ATOS) and Robinhood Markets, Inc. (HOOD). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ATOS achieves a -46.89% return, which is significantly lower than HOOD's -26.75% return.

ATOS

• 1D: -3.09%
• 1M: -19.80%
• YTD: -46.89%
• 6M: -57.57%
• 1Y: -63.23%
• 3Y*: -30.69%
• 5Y*: -41.62%
• 10Y*: -40.99%

HOOD

• 1D: -6.02%
• 1M: 8.23%
• YTD: -26.75%
• 6M: -38.01%
• 1Y: 15.52%
• 3Y*: 107.01%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

ATOS vs. HOOD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
ATOS Atossa Therapeutics, Inc.	-46.89%	-37.51%	7.28%	66.51%	-66.97%	-58.97%
HOOD Robinhood Markets, Inc.	-26.75%	203.54%	192.46%	56.51%	-54.17%	-48.99%

Correlation

The correlation between ATOS and HOOD is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.34
Correlation (3Y) Calculated over the trailing 3-year period	0.30
Correlation (All Time) Calculated using the full available price history since Jul 30, 2021	0.35

Fundamentals

Market Cap ATOS : $40.52M HOOD : $75.81B
EPS ATOS : -$4.37 HOOD : $2.07
PB Ratio ATOS : 1.33 HOOD : 7.83
Total Revenue (TTM) ATOS : $0.00 HOOD : $3.91B
Gross Profit (TTM) ATOS : -$12.00K HOOD : $2.86B
EBITDA (TTM) ATOS : -$29.16M HOOD : $1.80B

Return for Risk

ATOS vs. HOOD — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

ATOS

ATOS Risk / Return Rank: 9
ATOS Sharpe Ratio Rank: 7
ATOS Sortino Ratio Rank: 8
ATOS Omega Ratio Rank: 8
ATOS Calmar Ratio Rank: 10
ATOS Martin Ratio Rank: 9

HOOD

HOOD Risk / Return Rank: 47
HOOD Sharpe Ratio Rank: 48
HOOD Sortino Ratio Rank: 49
HOOD Omega Ratio Rank: 47
HOOD Calmar Ratio Rank: 47
HOOD Martin Ratio Rank: 46

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

ATOS vs. HOOD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Atossa Therapeutics, Inc. (ATOS) and Robinhood Markets, Inc. (HOOD). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	ATOS	HOOD	Difference
Sharpe ratio: Return per unit of total volatility	-0.87	0.23	-1.10
Sortino ratio: Return per unit of downside risk	-1.26	0.83	-2.09
Omega ratio: Gain probability vs. loss probability	0.83	1.10	-0.26
Calmar ratio: Return relative to maximum drawdown	-0.82	0.27	-1.09
Martin ratio: Return relative to average drawdown	-1.36	0.50	-1.86
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ATOS vs. HOOD - Sharpe Ratio Comparison

The current ATOS Sharpe Ratio is -0.87, which is lower than the HOOD Sharpe Ratio of 0.23. The chart below compares the historical Sharpe Ratios of ATOS and HOOD, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	ATOS	HOOD	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.87	0.23	-1.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.55	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.26	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.30	0.27	-0.57

Drawdowns

ATOS vs. HOOD - Drawdown Comparison

The maximum ATOS drawdown since its inception was -99.99%, which is greater than HOOD's maximum drawdown of -90.21%. Use the drawdown chart below to compare losses from any high point for ATOS and HOOD.

Drawdown Indicators

	ATOS	HOOD	Difference
Max Drawdown Largest peak-to-trough decline	-99.99%	-90.21%	-9.78%
Max Drawdown (1Y) Largest decline over 1 year	-77.74%	-57.26%	-20.48%
Max Drawdown (3Y) Largest decline over 3 years	-87.49%	-57.26%	-30.23%
Max Drawdown (5Y) Largest decline over 5 years	-96.95%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-99.58%	—	—
Current Drawdown Current decline from peak	-99.99%	-45.66%	-54.33%
Average Drawdown Average peak-to-trough decline	-93.59%	-60.99%	-32.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	46.62%	30.88%	+15.74%

Volatility

ATOS vs. HOOD - Volatility Comparison

The current volatility for Atossa Therapeutics, Inc. (ATOS) is 13.46%, while Robinhood Markets, Inc. (HOOD) has a volatility of 21.14%. This indicates that ATOS experiences smaller price fluctuations and is considered to be less risky than HOOD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ATOS	HOOD	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.46%	21.14%	-7.68%
Volatility (6M) Calculated over the trailing 6-month period	67.76%	50.03%	+17.73%
Volatility (1Y) Calculated over the trailing 1-year period	72.77%	68.61%	+4.16%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	76.10%	73.99%	+2.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	155.32%	73.99%	+81.33%

Dividends

ATOS vs. HOOD - Dividend Comparison

Neither ATOS nor HOOD has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both ATOS and HOOD in my portfolio?

ATOS and HOOD have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ATOS or HOOD?

HOOD has higher volatility (21.14%) compared to ATOS (13.46%). In terms of maximum drawdown, ATOS dropped -99.99% vs HOOD's -90.21%.

Which has better risk-adjusted returns?

HOOD currently has the higher Sharpe Ratio (0.23 vs -0.87), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.